b b b b b



Patented Jan-.10,1882

(No Model.)

J. J. SGHILLlNGER. MANUPAGTURE 0F BUILDING BLOCKS. No. 252,263.

wwwa/s @r `the block is to be used.

the plane y y,

UNITED STATES PATENT OFFICE.

JOHN'J. soEILLINeEE, or NEW YORK, N. Y.

n MANUFACTURE OFBUILDiNG-BLOCKS.

SPECIFICATION forming part of Letters Patent No. 252,26-3, dated January 10, 1882.

' Application filed October 11, 1881. (No model.)

To all whom it may concern:

Be it known that I JOHN J. SGHILLINGER, a citizen ofthe United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in the Manufacture of Building-Blocks, of which the following is a specification.

This invention consists iu a building-block two opposite facesof which are provided with cavities, the cavities in each of said faces extending to within a short distance from tbe opposite face, While the remaining faces present solid or unbroken surfaces; also,'in the process for manufacturing such building blocks, as hereinafter more fully pointed out.

. This invention is illustrated in the accompanying drawings, in which Figure 1 represents a perspective view of a building block 4made according to'my invention. Fig. 2 is a seotion'of the same in the plane as rv, Fig. 1. Fig. 3 is a transverse section of the same in Fig. 1. Fig. 4 illustratesa portion of the mechanism which Insein manufacturing my buildin g-blocks.

Similar letters indicate corresponding parts.

In the example shown in the drawings the letter A designates a'bnilding-block which is made in theform of a parallelopiped, but which may be made in the other form suitable for the purpose for which The faces au of this block', which are opposite to each other, are provided with cavities b b', the cavities bin the face c being made to extend to within a short distance from the opposite face, a', and

`the cavities b in the face a' to within a short distance from the opposite face, ct. (Best seen in Figs. 2 and 3.) lheV remaining faces, c, of

, the block A present solid or unbroken surfaces.

' The cavities b b" Iare produced by pills cl d', Fig. 4, which extend in opposite directions from heads e e', through the top f and bottom g of the mold G, which contains the clay or other plastic material from which the block is to be made. From this drawingit will be seen that the pins l cl/lie close together when they have been forced into the clay, so thathollow spaces h, Fig. 2, are formed, which extend to the outside walls of the block, and which are separated from each other by partitions t'. The

form of a cube, or in any' pins d ol may, however, be so placed that they do not touch when forced into the clay, and that thecavities b, made by the pins d,`remain dis tinct from the cavities b', made'by the pins d. In the example shown in the drawings the cavities b b are square; but these cavities may be round, or of any other desirable form or shape.

When the mold has been charged with the plastic material its top is put on and the pins d d are forced in. By the action of the pins a powerful pressure is exerted on the clay or other plastic material, and the finished blocks are rendered solid and durable.

My buildingblock is intended particularly for partition-walls in buildings, and it has the great advantages that it is light, that it presents two perforated faces, which retain the plasterin g firmly, and that its remaining faces are solid or unbroken, so that they present proper surfaces for mortar. The cavities in the faces intended to retain the plasterin g also afford an opportunity for nails to be driven into the partition-walls made of my blocks.

It will be understood from the foregoing description thatthe weight of my blocks can be increased or decreased by changing the distance between and the size of the cavities b b.

What I claim as new, and desire to secure by Letters Patent,`is

1. A building block two opposite faces of which are provided with cavities, the cavities in each of said faces extending to within a short distance from the opposite face, While the remaining faces present solid or unbroken surfaces, substantially as shown and described.

2. The within-described process for producing buildingblocks by placing clay or other suitable plastic material into a mold the top and bottom of which are provided with perforations, and then forcing from opposite sides, through these perforations, suitable pins for pressing the clay and producing cavities in two opposite sides of the block, as set forth.

In testimony whereof I have hereunto set my'hand and seal in the presence of two subscribing witnesses.

JOHN J. SCHILLINGER. .[L.

`Witnesses J. VAN SAN'rvooRD, E. F. KASTENHUBER. 

